SK 4609 9 Piece 3/8-Inch Drive 12 Point Flex 1/4-Inch to 3/4-Inch Standard Socket Set 9-piece 3/8-inch drive 12-point flex fractional socket set stands up to harsh working environments Patented SuperKrome finish for durability and maximum corrosion resistance SureGrip hex design drives the side of the fastener, not the corner Includes 1/4-, 5/16-, 3/8-, 7/16-, 1/2-, 9/16-, 5/8-, 11/16-, and 3/4-inch flex sockets 3/8-inch drive